Multiple communication path compatible automatic vehicle location unit
US5046130A · kind A · utility
51Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1989 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Aug 8, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A location reporting device for use with both voice and data RF transceivers. The location determining device selects which of the transceivers will be utilized to transmit location information to a central site in response to a number of predetermined criteria, including reception of a polling request on one of the transceivers, initiation of transmission activity on one of the transceivers, and elapsed time since a last transmission of location information by the location unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.